If additional houses are to be served from one transformer, the secondaries can be extended along the rear lot line.

• A. True
• B. False
• C. Not allowed
• D. Only with approval

Answer: (A)

Extending secondary conductors from a transformer to serve more homes by running them along the rear lot line is an acceptable practice when there is an established right-of-way or permission and the installation meets safety requirements. The transformer provides the low-voltage supply for residential service, and if a property behind the front line needs service, the secondaries can be routed along the property line to reach those buildings without adding another transformer, as long as there is enough capacity to handle the additional load.

Key safety and legal considerations include having an easement or owner consent to use the rear lot line, ensuring proper clearances and protection for the conductors (correct insulation, weatherproofing, and physical protection from damage), and sizing the conductors for the total load. Also, appropriate protective devices and service equipment must be in place to isolate and protect each customer's connection. If these conditions are not met, extending along the rear lot line would not be permissible.